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arXiv · 1204.2966

Total Current Blockade in an Ultra-Cold Dipolar Quantum Wire

Líney Halla Kristinsdóttir·Olov Karlström·Johannes Bjerlin·Jonas C. Cremon·Peter Schlagheck·Andreas Wacker·Stephanie M. Reimann
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Abstract

Cold atom systems offer a great potential for the future design of new mesoscopic quantum systems with properties that are fundamentally different from semiconductor nanostructures, such as quantum dots and quantum wires with electrons. Here, we investigate the analog of a quantum wire using ultra-cold particles, and find a new scenario for the quantum transport: Attractive interactions may lead to a complete suppression of current in the low-bias range, a total current blockade. We demonstrate this effect for the example of ultra-cold quantum gases with dipolar interactions.

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Líney Halla Kristinsdóttir, Olov Karlström, Johannes Bjerlin, Jonas C. Cremon, Peter Schlagheck, Andreas Wacker, Stephanie M. Reimann. 2013-11-04. Total Current Blockade in an Ultra-Cold Dipolar Quantum Wire. https://doi.org/10.1103/physrevlett.110.085303

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